AI Article Synopsis
- The electronic structure of genomic DNA has been thoroughly analyzed using advanced techniques like synchrotron X-ray absorption and photoelectron spectroscopy.
- Both the unoccupied and occupied electronic states near the Fermi level have been identified and linked to specific areas within the DNA.
- The study reveals a semiconductor-like behavior in DNA with a band gap of about 2.6 eV, primarily influenced by the pi and pi* orbitals of the nucleobases.
Article Abstract
The electronic structure of genomic DNA has been comprehensively characterized by synchrotron-based X-ray absorption and X-ray photoelectron spectroscopy. Both unoccupied and occupied states close to the Fermi level have been unveiled and attributed to particular sites within the DNA structure. A semiconductor-like electronic structure with a band gap of approximately 2.6 eV has been found at which the pi and pi* orbitals of the nucleobase stack make major contributions to the highest occupied and lowest unoccupied molecular orbitals, respectively, in agreement with previous theoretical predictions.
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| http://dx.doi.org/10.1021/jp1013237 | DOI Listing |
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